Bob Heideman to retire after 29 years with the company MILWAUKEE, July 1, 2025 /PRNewswire/ -- A. O. Smith Corporation (NYSE: AOS), a leader in water heating and water treatment, announced today that Ming Cheng, will become A. O. Smith's next senior vice president and chief technology officer. He replaces Bob Heideman, who has been with the company in different capacities since 1994. Cheng, who was most recently senior vice president of research and development for the Transportation and Electronics Busines ...